Scag SWZ User Manual

OPERATOR'S MANUAL

MODEL SWZ

FROM SERIAL NUMBER 60001 TO 69999

WARNING

FAILURE TO FOLLOW SAFE OPERATING PRACTICES

MAY RESULT IN SERIOUS INJURY.

* Keep all shields in place, especially the grass discharge chute. * Before performing any maintenance or service, stop the machine and

remove the spark plug wire and ignition key. * If a mechanism becomes clogged, stop the engine before cleaning. * Keep hands, feet and clothing away from power-driven parts. * Read this manual completely as well as other manuals that came

with your mower. * Keep others off the tractor (only one person at a time).

REMEMBER - YOUR MOWER IS ONLY AS SAFE AS THE OPERATOR!

Hazard control and accident prevention are dependent upon the awareness, concern, prudence, and proper training of the personnel involved in the operation, transport, maintenance, and storage of the equipment.

This manual covers the operating instructions

and illustrated parts list for:

All SWZ Machines

with a serial number of xxx60001- xxx69999

Always use the entire serial number listed on the serial number tag when referring to this product.

Your mower was built to the highest standards in the industry. However, your mower is only as safe as the operator. Carelessness or operator error may result in serious bodily injury or death. Hazard control and accident prevention are dependent upon the awareness, concern, prudence, and proper training of the personnel involved in the operation, transport, maintenance, and storage of the equipment. Make sure every operator is prop-

erly trained and thoroughly familiar with all of the controls before operating the equipment.

- Scag Power Equipment -

GENERAL SAFETY INSTRUCTIONS

•

READ THIS OPERATOR'S MANUAL and instructions furnishedwithattachments.

• A replacement manual is available from your

authorized Scag Service Dealer or by contacting Scag Power Equipment, Service Department at P.O. Box 152, Mayville, WI 53050. Please indicate the complete model number and serial number of your Scag product.

• Perform only those maintenance instructions de-

scribed in this manual. If major repairs are ever needed or assistance is desired, contact an authorized Scag dealer. To ensure optimum performance and safety, always purchase genuine Scag replacement parts and accessories. NEVER use “WILL FIT” replacement parts and accessories made by another manufacturer. THE USE OF

UNAPPROVED REPLACEMENT PARTS OR ACCESSORIES COULD VOID THE WARRANTY.

EQUIPMENT SAFETY

Know the controls and how to stop quickly.

•

• Clear the work area of objects (wires, rocks, etc.)

that might be picked up and thrown.

• Disengage power to attachments when transport-

ing or not in use.

• DO NOT change the engine governor settings or

overspeed the engine.

• Take all possible precautions when leaving the

machine unattended, such as disengaging the mower PTO engagement switch, stopping the engine, and removing the key.

• Keep the machine and attachments in good oper-

ating condition, and keep safety devices and shields in place and in working condition.

• Keep all nuts, bolts, and screws tight to be sure

the equipment is in safe working condition.

• NEVER store the equipment with gasoline in

the tank inside a building where fumes may reach an open flame or spark. Allow the engine to cool before storing in any enclosure.

• The machine and attachments should be stopped

and inspected for damage after striking a foreign object, and the damage should be repaired before restarting and operating the equipment.

• The discharge chute must be installed and in the

down position on the side discharge mower except when optional grass catcher is completely installed. If the mower discharge ever plugs, shut the engine off and wait for all movement to stop before removing obstruction.

• Clean grass, leaves, and lubricant spills from

surfaces after use to prevent spontaneous combustion.

OPERATOR SAFETY

NEVER operate the machine without approved

•

ventilation. Exhaust fumes are dangerous. DO NOT run the engine indoors.

• Watch out for traffic when crossing roads or oper-

ating near roadways.

• Handle gasoline with care - it is highly flammable

• DO NOT allow children to operate the machine.

Do not allow adults to operate the machine without proper instruction.

• DO NOT mow when children and others are

around. When using any attachments, never direct the discharge of material toward bystanders nor allow anyone near the machine while in operation.

• Before attempting to start the engine, follow all

starting instructions.

• BEFORE leaving the operator’s position, disen-

gage power to attachments.

• Before making any repairs or adjustments, dis-

engage power to attachments. STOP THE ENGINE AND REMOVE KEY.

• Use an approved gasoline container. Never remove

the fuel cap or add gasoline to a running or hot engine or an engine that has not been allowed to cool for several minutes after running. Never fill the tank indoors and always clean up spilled gasoline.

•

When using the mower, proceed as follows:

1. Mow only in daylight or in good artificial light.

2. Never make a cutting height adjustment while the engine is running.

3. Shut the engine off and remove key when removing the grass catcher or unclogging chute.

4. Check the blade mounting bolts for proper tightness at frequent intervals.

• DO NOT operate the machine while wearing san-

dals, tennis shoes, sneakers or shorts. Always wear long pants and substantial shoes. NEVER wear loose fitting clothing which could get caught in moving parts. Wearing safety glasses and safety shoes is advisable and required by some local ordinances and insurance regulations.

• Do not stop or start suddenly. WHEN OPERAT-

ING ON A SLOPE, TRAVEL ACROSS THE GRADE, WHENEVER POSSIBLE, NEVER UP OR DOWN.

• Reduce speed and exercise extreme caution on

slopes and in sharp turns to prevent tipping or loss of control. Be especially cautious when changing direction on slopes.

• Stay alert for holes, rocks, and roots in the terrain

and other hidden hazards. Keep away from dropoffs.

• Do not touch engine or muffler while engine is

running or soon after it is stopped. These areas could be hot enough to cause a burn.

• Only use Scag approved riding attachments.

Scag Approved Attachments:

RS-ZT

Using unapproved attachments, (especially "stand-up" riding attachments) may be hazardous.

WARNING

FALLING HAZARD

USE ONLY SCAG APPROVED

RIDING ATTACHMENTS

SEE OPERATOR'S MANUAL

WARNING: DO NOT operate on steep slopes. Reduce speed and use extreme caution. ALWAYS FOLLOW OSHA-APPROVED OPERATION.

481109

HYDRAULIC SAFETY

INITIAL RUN-IN

First Day of Use or approximately 10 hours.

• Keep body and hands away from pin holes or nozzles

that eject hydraulic fluid under high pressure. Use paper or cardboard and not hands to search for leaks.

• Hydraulic fluid escaping under high pressure may

have sufficient force to penetrate skin and cause serious injury. Ifforeign fluid is injected into the skin, it must be surgically removed within a few hours by a doctor familiar with this form of injury or gangrene may result.

• Make sure all hydraulic fluid connections are tight and

all hydraulic hoses and lines are in good condition before starting the machine.

• Hydraulic fluid is under high pressure. If you need

service on your hydraulic system, please see your authorized Scag dealer.

3 Check for proper operation of the safety interlocks. 3 Check belts for proper tension at 2, 4 and 8

hours; adjust as needed.

3 Check speed control neutral adjustment. Adjust if

necessary, (see Adjustments, page 9) so that engine will not start unless speed control lever is in neutral and blade clutch is disengaged.

3 Check steering control neutral and adjust, if

needed, as indicated in the Adjustments Section.

3 Check tires for proper pressure (see Adjustments,

page 9).

3 Check for loose hardware. Tighten as needed.

3 Grease machine fittings:

• 2 caster wheel bearings

• 2 caster wheel pivots

• 2 or 3 spindles (bearings)

• 1 or 2 deck idler pivot arms

• 1 engine idler arm pivot

• 2 speed control shafts

• 2 neutral cam weldments

• 2 pivot weldments, pump control

BEFORE STARTING

TO START ENGINE

3 Check belts for:

• Proper tension

• Fraying and wear

• Twisting

• Cracking

3 Check initial tension of the cutter blade drive belts.

If belts are notproperly tensioned, see Adjustments, page 6&7.

3 Check oil levels in the engine and hydraulic

reservoir.

3 Fill the fuel tank with clean,fresh lead-free gasoline.

-NOTE-

For best engine performance, SCAG recommends using gasoline with an octane rating no less than 87.

-NOTE-

Read and understand the instructions on safety before attempting to operate the mower.

1. Open the fuel valve.

SGB108

Fuel Valve

(Open position is Down)

2. Pull speed control lever to NEUTRAL position.

SGB108

3. Pull the mower PTO engagement switch down to STOP

position.

-NOTE-

Neutral latches must be in NEUTRAL LOCK position for startup.

4. Turn key switch on.

-NOTE-

Some engines are recoil start models, others are electric; manual choke locations will vary.

Speed Control In Neutral

NEUTRAL

SLOW

FAST

Neutral Latch Position (both handles)

OFF

Key Switch On

Starting Engine

SLOW

STOP START

FAST

CHOKE

Blade Clutch In

Throttle

Adjustment

Stop Position

SGB104

TO START ENGINE - cont'd

5. Start engine and choke as required. Adjust throttle to desired engine speed.

Choke

Kohler And Briggs & Stratton

SGB114

6. Pull out and push up the mower PTO engagement switch to engage the cutter deck.

1. With steering control lever in neutral, move the speed control lever into the first notch from the neutral position for initial operation.

2. While squeezingsteering control levers with both hands, release both neutral latches. When steering control levers are released into drive position, mower will travel straight.

-NOTE-

The zero turn feature is shown by squeezing up full on one steering control lever while releasing the other. The wheel on the side the lever is squeezed, will turn in reverse.

3. To make a right turn, squeeze up on the RH lever; to turn left, squeeze up on the LH lever.

4. Shift speed control lever for desired mowing speed.

-NOTE-

Top speed is suggested only for transport!

MOWER OPERATION

-NOTEIf you are not familiar with the operation of the hydrostatic drive and zero turn feature, practice turning and maneuvering with the hand controls before engaging the blades.

Neutral Position

Steering

Steering Control Rod

Drive

Position

Neutral LatchShift Lever

Control

Lever

5. TO STOP wheel drive, squeeze both steering levers to the neutral position and lock with the neutral latch. Then move speed control lever to neutral position.

-NOTE-

Be sure area is clear before backing up.

6. To move the machine in reverse, squeeze up on

both steering control levers.

7. When operating on a slope, travel across the grade,

never up and down.

8. Before turning the engine off, be certain the blade

clutch switch is in the OFF position, neutral latches are in NEUTRAL position, and speed control lever

is in NEUTRAL.

AFTER OPERATION

ADJUSTMENTS

1. Shut off engine.

2. Recheck cutter drive belts for proper tension, alignment, and any signs of rubbing. Correct and adjust as necessary.

To "freewheel" or move the mower around without the engine running, rotate both dump valve levers located at the back of the pumps to "freewheel" positions, approximately 1/2 a turn (see figure below). Levers must be returned to original position to operate the mower.

CAUTION: Stop engine and remove key from ignition before making any adjustments. Wait for all moving parts to come to a complete stop before beginning work.

BELT TENSION

-NOTE-

The Hydro Drive Belt is spring-loaded and does not require adjustment.

To adjust the cutter deck drive and blade belts:

1. Remove the belt cover.

RH Belt Tension Adjustment Idler

Engaugement Idler

Dump Valve Levers

(normal position)

-NOTE-

Bolts will not always be in this position. To close the dump valve, rotate until bolt stops.

SGB112

Tension Check

Point

2. To adjust the cutter deck drive belt: Adjust the nut so that

the belt moves 1/2" with 10 pounds of pressure. (See figure below).

Washer

Idler - L.H.

"J" Bolt

Belt

sgb004

End Of L-Shaped Bracket

Nut

Cutter Deck Drive Belt Tension Alignment-

ADJUSTMENTS (cont'd)

3. To adjust the blade drive belt: Using a belt tension gauge, check the belt tension so that the belt moves 1/2" with 10 pounds of pressure.

Blade Drive Belt Tension Check

Adjust the tension by tightening or loosening the J-bolt.

Nut

Washer

CUTTER DECK ADJUSTMENTS

Due to the many conditions that exist, it is difficult to suggest a setting that will work for every lawn. There are, however, two adjustments that should be made on the cutter deck: pitch and height.

PITCH is the angle of the blades (comparing front to rear). A 1/4" downward pitch (front of deck down) is recommended for better cutting performance.

HEIGHT is the nominal distance that the blade is off the ground. This measurement is made with the blades pointed side to side and distance is measured between cutting tip and ground.

Adjusting the blade height can be done by moving any number of the five smaller spacers on the blade mounting bolts to the top of the spindle shaft or below the spindle shaft. All blades should be positioned equally (see Spindle Illustration, p. 8).

Deck

"J" Bolt

Belt

Belt Tension Adjustment - Idler, R.H.

4. Replace the belt covers.

BELT ALIGNMENT

Belt alignment is important for proper performance of your Scag mower. If you experience frequent belt wear or breakage, see your authorized Scag service dealer for belt adjustment.

ADJUSTMENTS (cont'd)

TAPERED BEARING SPINDLE ASSEMBLY

The cutter deck is shipped with one spacer on top of spindle and four underneath (see figure below).

Hex Nut-Torque to 75 Lb-Ft

Cutter Blade

Spacer 1/4"

For cutting in the lowest position, mount the cutter deck in the top hole (A). For cutting in the highest position, mount the deck in the lowest hole (C). Setting the cutter deck height will be determined by the type of cutting conditions.

Spindle Shaft

Spindle Assembly

Washer

Hex Head Bolt

-NOTE-

For best results, keep the cutter deck high in relation to the engine deck and the blades low in the cutter deck; ie. 3 or 4 spacers below the spindle shaft.

Additional range to the cutting height can be

Hex Head

Cutter Blade

Spacers1/4"

Cutter Blade

achieved by repositioning the cutter deck in relationship to the engine deck. This adjustment also effects the pitch of the deck. There are three positions for mounting the cutter deck (see figure following column).

Cutter

Deck

Bolt / Nut

Repositioning The Cutter Deck

Caster spacers also can be repositioned to change cutting heights and to change the pitch of the deck (see figure below).

To adjust caster spacers, raise the deck and remove pin and caster wheel. Reposition caster spacers as needed then replace caster, top spacers and pin. Make the same adjustments on the other caster wheel.

Spacers

Repositioning Caster Spacers

ADJUSTMENTS (cont'd)

BLADE HEIGHT ADJUSTMENT

-Note-

For best cut and discharge a minimum of three spacers should be between the blade and spindle. (see page 8)

TIRE PRESSURES

Caster Wheels 25 PSI Drive Wheels 15 PSI

NEUTRAL ADJUSTMENT

-NOTE-

This is the only adjustment to properly set neutral.

1. Move the mower to a secure area away from

bystanders and preferably, facing a wall. Raise the drive wheels off the ground. Block caster wheels.

CAUTION

Do not try to adjust neutral with the speed

control rods or the speed adjustment cam.

2. Remove the speed control spring and the steering

control rod from the machine by removing the hairpin at the swivel and at the handle. (See figure below).

Neutral Latch

Neutral Position

Steering

Control

Lever

Steering Control Rod

Bolts

Spring

Handle

Bellcrank

SC160G

NEUTRAL ADJUSTMENT

5. Observe the drive wheels. If they rotate, loosen the bolts on the neutral adjustment handle and move the handle up or down until the wheels are in neutral (up for reverse and down for forward). (See figure above).

6. Tighten the bolts on the neutral adjustment handle.

When tightening the bolts, hold the bellcrank to prevent it from rotating and throwing off the neutral adjustment.

7. Turn off engine.

STEERING CONTROL ROD ADJUSTMENT

-NOTE-

This adjustment is made to allow the steering control lever to be moved out of the neutral latch without engaging reverse.

Steering Control Rod

Drive

Position

3. Start engine and let it warm up for a few minu tes.

4. Loosen the wing nut and let the speed adjustment

bearing lever fall away from the cam.

1. Connect BOTH steering control rods into the steering

control lever up on the handles. Do not install the hair pin through the rod at this time.

2. Put the steering control lever control rod into the

neutral latch. (See figure on page 10).

ADJUSTMENTS (cont'd)

Neutral Latch

Neutral Position

Steering

Control

Lever

-NOTE-

Make sure that the adjustments on page 9 have been completed, the neutral latch is engaged and that the speed shift lever is in neutral.

1. Place the speed adjustment bearing lever where the bearing just contacts the speed adjustment cam. (See

figure below).

Steering Control Rod

Drive

Position

3. Turn the swivel joint on the steering control rod until the swivel joint lines up in the center of the slot in the bellcrank. This will allow the control rod to be moved back when shifting out of neutral and not move the bellcrank.

4. Remove the steering control rod from the mower. Install the speed control spring onto the swivel joint and then connect the control rod back to the machine.

-NOTE-

Make sure that the swivel joint does not turn on the control rod while you are doing this.

5. Install the hair pins into the control rod up at the handle and into the swivel joint.

Steering Control Rod

Swivel Joint

Speed Control Spring

Speed Adjustment

Cam

Bearing

Speed Adjustment Bearing Lever

Bellcrank

SC161G

4. Tighten the wing nut securing the speed adjustment bearing lever and repeat on other side.

5. Put the machine on a flat level surface (preferably on grass) and start engine.

6. Place speed adjustment hand lever into the forward speed used most often and see if machine tracks straight.

TRACKING STRAIGHT ADJUSTMENT

-NOTE-

Before making this adjustment be sure that the tire pressure has been checked and that it is correct. (See page 9)

-NOTE-

This adjustment will allow the machine to travel in a straight line at the normal operating speed.

7. If machine pulls to one side, put the speed adjustment hand lever back into neutral and shut off engine.

WARNING: Never move the bearing forward beyond just touching the cam, or reverse will be engaged unintentionally.

8. If the machine pulls to the left, on the left side of the

bell crank, loosen the wing nut and move the adjustment bearing lever 1/16" away from the cam and retighten the bolts. Restart engine and check tracking.

+ 27 hidden pages